Green gram, Vigna radiata (Linnaeus) Wilczek is grown in an area of 1.29 lakh ha, producing 0.61 lakh tonnes with an average productivity of 473 kg/ha in Gujarat (Anonymous, 2015). The productivity of green gram has rather remained static due to insect pests which cause yield losses both quantitatively and qualitatively. Of the insect pests attacking green gram, Maruca vitrata (Geyer) is the most destructive and major pest as it causes 20 to 40 per cent pod damage (Bindra, 1968and Rahman, 1998). In past decades, unreasoned or systematic (calendar spraying) chemical control has been progressively replaced by integrated pest management (IPM) programmes in India, although in the most cropping situations chemical control remains the chief tool to achieve successful control of insect pests. Implementation of reliable economic-injury levels (EILs) and economic thresholds (ETs) for decision-making in IPM programmes leading to reduced insecticide sprayings is a crucial task, which will not only minimise chemical residues and environmental impact but also will doubtless improve the biological